17979741

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{11821}}^1$

素因数の和:11853

約数の個数: 18

約数和(自身を含む): 28124538

約数和(自身を除く): 10144797

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 11821, 35463, 106389, 153673, 461019, 1383057, 1997749, 5993247, 17979741]

約数ペア:

[(1, 17979741), (3, 5993247), (9, 1997749), (13, 1383057), (39, 461019), (117, 153673), (169, 106389), (507, 35463), (1521, 11821)]